How can I reset bios password?

When you turn on the computer on and after it boots up or when it's booting up press the f1 key and it should take you to CMOS where you can change your password. I've done this on previous computers and it has worked.

To reset the bios in an Acer 5100 you need to remove your DDR2 memory sticks, below you can see "j2", it is a 3 pin jumper close to the battery look which 2 of the 3 pin it is on, then move the little plastic tab from those two to the other two pins and then hit the power button once. When you have done this, return the tab back to the original setting. This should reset the bios. Should that not work, you can take more drastic steps and follow the thread here by a user name Robinhood69. It is very involved but should work as well. the other way is to obtain software BIOS/CMOS password recovery tools and yes Zain's flashing of the BIOS would also do it....Good Luck and let us know how it is going.

Resources

Repairability

Stay in the loop

It's time to speak out for your right to repair

We have a chance to guarantee our right to repair electronic
equipment—like smartphones, computers, and even farm equipment. This is a once-in-a-generation
chance to protect local repair jobs—the corner mom-and-pop repair shops that
keep getting squeezed out by manufacturers.

Join the cause and tell your state representative to support Right to Repair. Tell them you believe repair should be fair, affordable, and accessible. Stand up for your right to repair!